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Accepted
Andrew Fashion
Asked: 2011-01-08 09:46:30 +0800 CST

Make user uploads go to different hard drive?

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I am using a pre-made social networking script where all user uploads go to site.com/public/user/

How can I make /public/user/ my secondary hard drive so all user uploads are uploaded to my second harddrive and not the primary hard drive. I have over 100GB of images, and I want them on my other HDD now. Thank you.

I am running CentOS 5.5 64bit w/ Apache and PHP

I have two 250GB Sata HDDs

#sudo parted /dev/sda print

Model: ATA WDC WD2500KS-00M (scsi)
Disk /dev/sda: 250GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system  Flags
 1      32.3kB  107MB   107MB   primary   ext3         boot 
 2      107MB   8595MB  8488MB  primary   linux-swap        
 3      8595MB  10.7GB  2147MB  primary   ext3              
 4      10.7GB  250GB   239GB   extended                    
 5      10.7GB  250GB   239GB   logical   ext3              

Information: Don't forget to update /etc/fstab, if necessary.    
5 10.7GB 250GB 239GB logical ext3
centos

2 Answers

  1. Best Answer

    The procedure would look something like this. You haven't provided much in the way of detail in your question, so I can't give you exact details.

    • If the other drive is new, or never been used, then you need to set it up. Create the partition and filesystem, then mount it somewhere.
    • Create a folder on your other drive /otherdrive_mnt/site.com/public/user/
    • Copy or move content from current location to the created folder
    • Link the folder to the new drive by
      • Creating a symlink from site.com/public/user/ to /otherdrive_mnt/site.com/public/user/
      • Use a bind mount from site.com/public/user/ to /otherdrive_mnt/site.com/public/user/
    • 2

  2. The way I would do this would be to

    • Find out where site.com/public/user lives within the filesystem.
    • Partition and newfs the second drive as required
    • Temporarily mount the second drive somewhere and copy the existing files to it.
    • Disable uploads temporarily
    • Unmount the second drive and mount it into the filesystem as noted above
    • Enable uploads
    • Make a suitable entry in /etc/fstab
    • 0